1) What is the mass of 38 molecules of SO3 in g?
2) What volume in L of chlorine at 30oC and 743 torr is required to react completely with 4.76 g aluminum:
2Al(s) + 3Cl2(g) → 2AlCl3(s)
Calculate the moles chlorine needed (as in the previous problem), then use the ideal gas law--PV = nRT. Additional help is given in the feedback.